It's a cable grommet but with the option of adding a cheese cover. Basically so when someone asks why on earth you have cheese covering your cable hole you can say "Cheeeese Gromit!"

Sized for a 2" hole. 

If you just want a grommet print “wire port f” and “wire port m” or “wire port m extended”. If you want the cheese grommet print “wire port f cheese edition”,  “wire port m” or “wire port m extended”, and "grommet cheese".

If your material is 3/8" or thicker I would recommend using “wire port m extended” instead of “wire port m."